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dunite

[doo-nahyt, duhn-ahyt] /ˈdu naɪt, ˈdʌn aɪt/
noun
1.
a coarse-grained igneous rock composed almost entirely of olivine.
Origin
1865-1870
1865-70; named after Mt. Dun in New Zealand, where it is found; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for dunite
  • dunite with alteration rind of talc and brucite from.
  • Serpentine is a metamorphic rock derived from dunite and similar rocks.
  • Amphibolite and chert tectonic blocks also occur in the dunite near the area's southern and western boundaries.
British Dictionary definitions for dunite

dunite

/ˈdʌnaɪt/
noun
1.
an ultrabasic igneous rock consisting mainly of olivine
Word Origin
C19: named after Dun Mountain, a mountain in New Zealand where it is abundant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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dunite in Science
dunite
  (d'nīt', dŭn'īt')   
A coarse-grained igneous rock that consists mainly of olivine.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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